Even the CP3 injection pump which replaced the more problem laden VP44, and offered better performance on the 5.9-liter Cummins, is known to create more pressure, which can lead to problems on the ...

5.9-Liter Cummins: Second Generation (Late 12-Valve, 1994-1998, P7100 Injection Pump) In 1994, the 5.9-liter Cummins was similar in many ways to the 1989-1993 engine. It had the same displacement ...